exam Maths Puzzle Numerical Ability

At 7:00 a.m. Joe starts jogging at 6 mph. At 7:10 a.m. Ken starts off after him. How fast must Ken run in order to overtake him at 7:30 a.m.

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exam Other Question

multiply the following
4x(2x^2+x-1)
should I use foil?
the second angle of a triangle is 30 degrees less than the first angle. the third angle is twice the second angle. how large are the angles?
please and thank you